/* pong, Copyright (c) 2003 Jeremy English <jenglish@myself.com>
* A pong screen saver
*
+ * Modified by Brian Sawicki <sawicki@imsa.edu> to fix a small bug.
+ * Before this fix after a certain point the paddles would be too
+ * small for the program to effectively hit the ball. The score would
+ * then skyrocket as the paddles missed most every time. Added a max
+ * so that once a paddle gets 10 the entire game restarts. Special
+ * thanks to Scott Zager for some help on this.
+ *
* Modified by Trevor Blackwell <tlb@tlb.org> to use analogtv.[ch] display.
* Also added gradual acceleration of the ball, shrinking of paddles, and
* scorekeeping.
*
+ * Modified by Gereon Steffens <gereon@steffens.org> to add -clock and -noise
+ * options. See http://www.burovormkrijgers.nl (ugly flash site,
+ * navigate to Portfolio/Browse/Misc/Pong Clock) for the hardware implementation
+ * that gave me the idea. In clock mode, the score reflects the current time, and
+ * the paddles simply stop moving when it's time for the other side to score. This
+ * means that the display is only updated a few seconds *after* the minute actually
+ * changes, but I think this fuzzyness fits well with the display, and since we're
+ * not displaying seconds, who cares. While I was at it, I added a -noise option
+ * to control the noisyness of the display.
+ *
+ * Modified by Dave Odell <dmo2118@gmail.com> to add -p1 and -p2 options.
+ * JWXYZ doesn't support XWarpPointer, so PLAYER_MOUSE only works on native
+ * X11. JWXYZ also doesn't support cursors, so PLAYER_TABLET doesn't hide the
+ * mouse pointer.
+ *
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
#include "screenhack.h"
#include "analogtv.h"
+#include <time.h>
+#ifndef HAVE_JWXYZ
+# include <X11/keysym.h>
+#endif
/* #define OUTPUT_POS */
+typedef enum {
+ PLAYER_AI,
+ PLAYER_MOUSE,
+ PLAYER_TABLET,
+ PLAYER_KEYBOARD,
+ PLAYER_KEYBOARD_LEFT
+} PlayerType;
+
typedef struct _paddle {
+ PlayerType player;
int x;
int y;
int w;
int h;
} Ball;
-static int delay;
-Paddle l_paddle;
-Paddle r_paddle;
-Ball ball;
-static int bx,by;
-static int m_unit;
-static int paddle_rate;
+struct state {
+ Display *dpy;
+ Window window;
-static analogtv *tv;
-static analogtv_input *inp;
-static analogtv_reception reception;
+ int clock;
-static int paddle_ntsc[4];
-static int field_ntsc[4];
-static int ball_ntsc[4];
-static int score_ntsc[4];
-static int net_ntsc[4];
+ Paddle l_paddle;
+ Paddle r_paddle;
+ Ball ball;
+ int bx,by;
+ int m_unit;
+ int paddle_rate;
+ double noise;
+
+ analogtv *tv;
+ analogtv_input *inp;
+ analogtv_reception reception;
+
+ int paddle_ntsc[4];
+ int field_ntsc[4];
+ int ball_ntsc[4];
+ int score_ntsc[4];
+ int net_ntsc[4];
+
+ analogtv_font score_font;
+
+# ifndef HAVE_JWXYZ
+ Cursor null_cursor;
+# endif
+ int mouse_y;
+ unsigned w, h, screen_h, screen_h_mm;
+ Bool is_focused;
+ Bool key_w: 1;
+ Bool key_s: 1;
+ Bool key_up: 1;
+ Bool key_down: 1;
+ unsigned int dragging : 2;
+};
-analogtv_font score_font;
enum {
PONG_W = ANALOGTV_VIS_LEN,
};
static void
-hit_top_bottom(void)
+p_hit_top_bottom(Paddle *p);
+
+static void
+hit_top_bottom(struct state *st)
+{
+ if ( (st->ball.y <= PONG_TMARG) ||
+ (st->ball.y+st->ball.h >= PONG_H) )
+ st->by=-st->by;
+}
+
+static void
+reset_score(struct state * st)
+{
+ if (st->clock)
+ {
+ /* init score to current time */
+ time_t now = time(0);
+ struct tm* now_tm = localtime(&now);
+
+ st->r_paddle.score = now_tm->tm_hour;
+ st->l_paddle.score = now_tm->tm_min;
+ }
+ else
+ {
+ st->r_paddle.score = 0;
+ st->l_paddle.score = 0;
+ }
+}
+
+static void
+new_game(struct state *st)
{
- if ( (ball.y <= PONG_TMARG) ||
- (ball.y+ball.h >= PONG_H) )
- by=-by;
+ /* Starts a Whole New Game*/
+ st->ball.x = PONG_W/2;
+ st->ball.y = PONG_H/2;
+ st->bx = st->m_unit;
+ st->by = st->m_unit;
+
+ /* jwz: perhaps not totally accurate, but randomize things a little bit
+ so that games on multiple screens are not identical. */
+ if (random() & 1) st->by = -st->by;
+ st->ball.y += (random() % (PONG_H/6))-(PONG_H/3);
+
+ st->l_paddle.wait = 1;
+ st->l_paddle.lock = 0;
+ st->r_paddle.wait = 0;
+ st->r_paddle.lock = 0;
+ st->paddle_rate = st->m_unit-1;
+ reset_score(st);
+
+ st->l_paddle.h = PONG_H/4;
+ st->r_paddle.h = PONG_H/4;
+ /* Adjust paddle position again, because
+ paddle length is enlarged (reset) above. */
+ p_hit_top_bottom(&st->l_paddle);
+ p_hit_top_bottom(&st->r_paddle);
}
-void
-start_game(void)
+static void
+start_game(struct state *st)
{
/*Init the ball*/
- ball.x = PONG_W/2;
- ball.y = PONG_H/2;
- bx = m_unit;
- by = m_unit;
-
- l_paddle.wait = 1;
- l_paddle.lock = 0;
- r_paddle.wait = 0;
- r_paddle.lock = 0;
- paddle_rate = m_unit-1;
-
- if (l_paddle.h > 10) l_paddle.h= l_paddle.h*19/20;
- if (r_paddle.h > 10) r_paddle.h= r_paddle.h*19/20;
+ st->ball.x = PONG_W/2;
+ st->ball.y = PONG_H/2;
+ st->bx = st->m_unit;
+ st->by = st->m_unit;
+
+ /* jwz: perhaps not totally accurate, but randomize things a little bit
+ so that games on multiple screens are not identical. */
+ if (random() & 1) st->by = -st->by;
+ st->ball.y += (random() % (PONG_H/6))-(PONG_H/3);
+
+ st->l_paddle.wait = 1;
+ st->l_paddle.lock = 0;
+ st->r_paddle.wait = 0;
+ st->r_paddle.lock = 0;
+ st->paddle_rate = st->m_unit-1;
+
+ if (st->l_paddle.h > 10) st->l_paddle.h= st->l_paddle.h*19/20;
+ if (st->r_paddle.h > 10) st->r_paddle.h= st->r_paddle.h*19/20;
}
static void
-hit_paddle(void)
+hit_paddle(struct state *st)
{
- if ( ball.x + ball.w >= r_paddle.x &&
- bx > 0 ) /*we are traveling to the right*/
+ if ( st->ball.x + st->ball.w >= st->r_paddle.x &&
+ st->bx > 0 ) /*we are traveling to the right*/
{
- if ((ball.y + ball.h > r_paddle.y) &&
- (ball.y < r_paddle.y + r_paddle.h))
+ if ((st->ball.y + st->ball.h > st->r_paddle.y) &&
+ (st->ball.y < st->r_paddle.y + st->r_paddle.h))
{
- bx=-bx;
- l_paddle.wait = 0;
- r_paddle.wait = 1;
- r_paddle.lock = 0;
- l_paddle.lock = 0;
+ st->bx=-st->bx;
+ st->l_paddle.wait = 0;
+ st->r_paddle.wait = 1;
+ st->r_paddle.lock = 0;
+ st->l_paddle.lock = 0;
}
else
{
- r_paddle.score++;
- start_game();
+ if (st->clock)
+ {
+ reset_score(st);
+ }
+ else
+ {
+ st->r_paddle.score++;
+ if (st->r_paddle.score >=10)
+ new_game(st);
+ else
+ start_game(st);
+ }
}
}
- if (ball.x <= l_paddle.x + l_paddle.w &&
- bx < 0 ) /*we are traveling to the left*/
+ if (st->ball.x <= st->l_paddle.x + st->l_paddle.w &&
+ st->bx < 0 ) /*we are traveling to the left*/
{
- if ( ball.y + ball.h > l_paddle.y &&
- ball.y < l_paddle.y + l_paddle.h)
+ if ( st->ball.y + st->ball.h > st->l_paddle.y &&
+ st->ball.y < st->l_paddle.y + st->l_paddle.h)
{
- bx=-bx;
- l_paddle.wait = 1;
- r_paddle.wait = 0;
- r_paddle.lock = 0;
- l_paddle.lock = 0;
+ st->bx=-st->bx;
+ st->l_paddle.wait = 1;
+ st->r_paddle.wait = 0;
+ st->r_paddle.lock = 0;
+ st->l_paddle.lock = 0;
}
else
{
- l_paddle.score++;
- start_game();
+ if (st->clock)
+ {
+ reset_score(st);
+ }
+ else
+ {
+ st->l_paddle.score++;
+ if (st->l_paddle.score >= 10)
+ new_game(st);
+ else
+ start_game(st);
+ }
}
}
}
+static PlayerType
+get_player_type(Display *dpy, char *rsrc)
+{
+ PlayerType result;
+ char *s = get_string_resource(dpy, rsrc, "String");
+ if (!strcmp(s, "ai") || !strcmp(s, "AI"))
+ {
+ result = PLAYER_AI;
+ }
+# ifndef HAVE_JWXYZ
+ else if (!strcmp(s, "mouse"))
+ {
+ result = PLAYER_MOUSE;
+ }
+# endif
+ else if (!strcmp(s, "tab") || !strcmp(s, "tablet"))
+ {
+ result = PLAYER_TABLET;
+ }
+ else if (!strcmp(s, "kb") || !strcmp(s, "keyb") || !strcmp(s, "keyboard") ||
+ !strcmp(s, "right") || !strcmp(s, "kbright") ||
+ !strcmp(s, "arrows"))
+ {
+ result = PLAYER_KEYBOARD;
+ }
+ else if (!strcmp(s, "left") || !strcmp(s, "kbleft") ||
+ !strcmp(s, "ws") || !strcmp(s, "wasd"))
+ {
+ result = PLAYER_KEYBOARD_LEFT;
+ }
+ else
+ {
+ fprintf(stderr, "%s: invalid player type\n", progname);
+ result = PLAYER_AI;
+ }
+ free(s);
+ return result;
+}
+
+static void
+do_shape (struct state *st, const XWindowAttributes *xgwa)
+{
+ st->w = xgwa->width;
+ st->h = xgwa->height;
+ st->screen_h = XHeightOfScreen(xgwa->screen);
+ st->screen_h_mm = XHeightMMOfScreen(xgwa->screen);
+}
+
+#ifndef HAVE_JWXYZ
+static Bool
+needs_grab (struct state *st)
+{
+ return
+ st->l_paddle.player == PLAYER_MOUSE ||
+ st->r_paddle.player == PLAYER_MOUSE;
+/*
+ st->l_paddle.player == PLAYER_TABLET ||
+ st->r_paddle.player == PLAYER_TABLET;
+ */
+}
+
static void
-init_pong (Display *dpy, Window window)
+grab_pointer (struct state *st)
+{
+ st->is_focused = True;
+ XGrabPointer(st->dpy, st->window, True, PointerMotionMask, GrabModeAsync,
+ GrabModeAsync, st->window, st->null_cursor, CurrentTime);
+}
+#endif /* !HAVE_JWXYZ */
+
+static void *
+pong_init (Display *dpy, Window window)
{
- tv=analogtv_allocate(dpy, window);
- analogtv_set_defaults(tv, "");
- tv->event_handler = screenhack_handle_event;
-
- analogtv_make_font(dpy, window, &score_font,
- 4, 6, NULL );
-
- /* If you think we haven't learned anything since the early 70s,
- look at this font for a while */
- analogtv_font_set_char(&score_font, '0',
- "****"
- "* *"
- "* *"
- "* *"
- "* *"
- "****");
- analogtv_font_set_char(&score_font, '1',
- " *"
- " *"
- " *"
- " *"
- " *"
- " *");
- analogtv_font_set_char(&score_font, '2',
- "****"
- " *"
- "****"
- "* "
- "* "
- "****");
- analogtv_font_set_char(&score_font, '3',
- "****"
- " *"
- "****"
- " *"
- " *"
- "****");
- analogtv_font_set_char(&score_font, '4',
- "* *"
- "* *"
- "****"
- " *"
- " *"
- " *");
- analogtv_font_set_char(&score_font, '5',
- "****"
- "* "
- "****"
- " *"
- " *"
- "****");
- analogtv_font_set_char(&score_font, '6',
- "****"
- "* "
- "****"
- "* *"
- "* *"
- "****");
- analogtv_font_set_char(&score_font, '7',
- "****"
- " *"
- " *"
- " *"
- " *"
- " *");
- analogtv_font_set_char(&score_font, '8',
- "****"
- "* *"
- "****"
- "* *"
- "* *"
- "****");
- analogtv_font_set_char(&score_font, '9',
- "****"
- "* *"
- "****"
- " *"
- " *"
- " *");
-
- score_font.y_mult *= 2;
- score_font.x_mult *= 2;
+ struct state *st = (struct state *) calloc (1, sizeof(*st));
+
+ int i;
+ XWindowAttributes xgwa;
+ struct {
+ int w, h;
+ char *s[10];
+ } fonts[2] = {
+ { /* regular pong font */
+ /* If you think we haven't learned anything since the early 70s,
+ look at this font for a while */
+ 4, 6,
+ {
+ "****"
+ "* *"
+ "* *"
+ "* *"
+ "* *"
+ "****",
+
+ " *"
+ " *"
+ " *"
+ " *"
+ " *"
+ " *",
+
+ "****"
+ " *"
+ "****"
+ "* "
+ "* "
+ "****",
+
+ "****"
+ " *"
+ "****"
+ " *"
+ " *"
+ "****",
+
+ "* *"
+ "* *"
+ "****"
+ " *"
+ " *"
+ " *",
+
+ "****"
+ "* "
+ "****"
+ " *"
+ " *"
+ "****",
+
+ "****"
+ "* "
+ "****"
+ "* *"
+ "* *"
+ "****",
+
+ "****"
+ " *"
+ " *"
+ " *"
+ " *"
+ " *",
+
+ "****"
+ "* *"
+ "****"
+ "* *"
+ "* *"
+ "****",
+
+ "****"
+ "* *"
+ "****"
+ " *"
+ " *"
+ " *"
+ }
+ },
+ { /* pong clock font - hand-crafted double size looks better */
+ 8, 12,
+ {
+ "####### "
+ "####### "
+ "## ## "
+ "## ## "
+ "## ## "
+ "## ## "
+ "## ## "
+ "## ## "
+ "## ## "
+ "####### "
+ "####### ",
+
+ " ## "
+ " ## "
+ " ## "
+ " ## "
+ " ## "
+ " ## "
+ " ## "
+ " ## "
+ " ## "
+ " ## "
+ " ## ",
+
+ "####### "
+ "####### "
+ " ## "
+ " ## "
+ "####### "
+ "####### "
+ "## "
+ "## "
+ "## "
+ "####### "
+ "####### ",
+
+ "####### "
+ "####### "
+ " ## "
+ " ## "
+ "####### "
+ "####### "
+ " ## "
+ " ## "
+ " ## "
+ "####### "
+ "####### ",
+
+ "## ## "
+ "## ## "
+ "## ## "
+ "## ## "
+ "####### "
+ "####### "
+ " ## "
+ " ## "
+ " ## "
+ " ## "
+ " ## ",
+
+ "####### "
+ "####### "
+ "## "
+ "## "
+ "####### "
+ "####### "
+ " ## "
+ " ## "
+ " ## "
+ "####### "
+ "####### ",
+
+ "####### "
+ "####### "
+ "## "
+ "## "
+ "####### "
+ "####### "
+ "## ## "
+ "## ## "
+ "## ## "
+ "####### "
+ "####### ",
+
+ "####### "
+ "####### "
+ " ## "
+ " ## "
+ " ## "
+ " ## "
+ " ## "
+ " ## "
+ " ## "
+ " ## "
+ " ## ",
+
+ "####### "
+ "####### "
+ "## ## "
+ "## ## "
+ "####### "
+ "####### "
+ "## ## "
+ "## ## "
+ "## ## "
+ "####### "
+ "####### ",
+
+ "####### "
+ "####### "
+ "## ## "
+ "## ## "
+ "####### "
+ "####### "
+ " ## "
+ " ## "
+ " ## "
+ "####### "
+ "####### "
+
+ }
+ }
+ };
+
+ st->dpy = dpy;
+ st->window = window;
+ st->tv=analogtv_allocate(st->dpy, st->window);
+ analogtv_set_defaults(st->tv, "");
+
+
+ st->clock = get_boolean_resource(st->dpy, "clock", "Boolean");
+
+ analogtv_make_font(st->dpy, st->window, &st->score_font,
+ fonts[st->clock].w, fonts[st->clock].h, NULL);
+
+ for (i=0; i<10; ++i)
+ {
+ analogtv_font_set_char(&st->score_font, '0'+i, fonts[st->clock].s[i]);
+ }
#ifdef OUTPUT_POS
printf("screen(%d,%d,%d,%d)\n",0,0,PONG_W,PONG_H);
#endif
- inp=analogtv_input_allocate();
- analogtv_setup_sync(inp, 0, 0);
+ st->inp=analogtv_input_allocate();
+ analogtv_setup_sync(st->inp, 0, 0);
- reception.input = inp;
- reception.level = 2.0;
- reception.ofs=0;
+ st->reception.input = st->inp;
+ st->reception.level = 2.0;
+ st->reception.ofs=0;
#if 0
if (random()) {
- reception.multipath = frand(1.0);
+ st->reception.multipath = frand(1.0);
} else {
#endif
- reception.multipath=0.0;
+ st->reception.multipath=0.0;
#if 0
}
#endif
- delay = get_integer_resource ("delay", "Integer");
- if (delay < 0) delay = 0;
-
/*Init the paddles*/
- l_paddle.x = 8;
- l_paddle.y = 100;
- l_paddle.w = 16;
- l_paddle.h = PONG_H/4;
- l_paddle.wait = 1;
- l_paddle.lock = 0;
- r_paddle = l_paddle;
- r_paddle.x = PONG_W - 8 - r_paddle.w;
- r_paddle.wait = 0;
+ st->l_paddle.player = get_player_type(dpy, "p1");
+ st->l_paddle.x = 8;
+ st->l_paddle.y = 100;
+ st->l_paddle.w = 16;
+ st->l_paddle.h = PONG_H/4;
+ st->l_paddle.wait = 1;
+ st->l_paddle.lock = 0;
+ st->r_paddle = st->l_paddle;
+ st->r_paddle.player = get_player_type(dpy, "p2");
+ st->r_paddle.x = PONG_W - 8 - st->r_paddle.w;
+ st->r_paddle.wait = 0;
/*Init the ball*/
- ball.x = PONG_W/2;
- ball.y = PONG_H/2;
- ball.w = 16;
- ball.h = 8;
+ st->ball.x = PONG_W/2;
+ st->ball.y = PONG_H/2;
+ st->ball.w = 16;
+ st->ball.h = 8;
+
+ /* The mouse warping business breaks tablet input. */
+ if (st->l_paddle.player == PLAYER_MOUSE &&
+ st->r_paddle.player == PLAYER_TABLET)
+ {
+ st->l_paddle.player = PLAYER_TABLET;
+ }
+ if (st->r_paddle.player == PLAYER_MOUSE &&
+ st->l_paddle.player == PLAYER_TABLET)
+ {
+ st->r_paddle.player = PLAYER_TABLET;
+ }
+
+ if (st->clock) {
+ st->l_paddle.player = PLAYER_AI;
+ st->r_paddle.player = PLAYER_AI;
+ fprintf(stderr, "%s: clock mode requires AI control\n", progname);
+
+ }
+
+# ifndef HAVE_JWXYZ
+ if (st->l_paddle.player == PLAYER_MOUSE ||
+ st->r_paddle.player == PLAYER_MOUSE ||
+ st->l_paddle.player == PLAYER_TABLET ||
+ st->r_paddle.player == PLAYER_TABLET)
+ {
+ XColor black = {0, 0, 0, 0};
+ Pixmap cursor_pix = XCreatePixmap(dpy, window, 4, 4, 1);
+ XGCValues gcv;
+ GC mono_gc;
+
+ gcv.foreground = 0;
+ mono_gc = XCreateGC(dpy, cursor_pix, GCForeground, &gcv);
+ st->null_cursor = XCreatePixmapCursor(dpy, cursor_pix, cursor_pix,
+ &black, &black, 0, 0);
+ XFillRectangle(dpy, cursor_pix, mono_gc, 0, 0, 4, 4);
+ XFreeGC(dpy, mono_gc);
+
+ XSelectInput(dpy, window,
+ PointerMotionMask | FocusChangeMask |
+ KeyPressMask | KeyReleaseMask |
+ ButtonPressMask | ButtonReleaseMask);
+
+ if (needs_grab(st))
+ {
+ grab_pointer(st);
+ }
+ else
+ {
+ XDefineCursor(dpy, window, st->null_cursor);
+ }
+ }
+# endif
+
+ st->m_unit = get_integer_resource (st->dpy, "speed", "Integer");
+ st->noise = get_float_resource(st->dpy, "noise", "Float");
+ st->clock = get_boolean_resource(st->dpy, "clock", "Boolean");
- m_unit = get_integer_resource ("speed", "Integer");
+ if (!st->clock)
+ {
+ st->score_font.y_mult *= 2;
+ st->score_font.x_mult *= 2;
+ }
+
+ reset_score(st);
- start_game();
+ start_game(st);
- analogtv_lcp_to_ntsc(ANALOGTV_BLACK_LEVEL, 0.0, 0.0, field_ntsc);
- analogtv_lcp_to_ntsc(100.0, 0.0, 0.0, ball_ntsc);
- analogtv_lcp_to_ntsc(100.0, 0.0, 0.0, paddle_ntsc);
- analogtv_lcp_to_ntsc(100.0, 0.0, 0.0, score_ntsc);
- analogtv_lcp_to_ntsc(100.0, 0.0, 0.0, net_ntsc);
+ analogtv_lcp_to_ntsc(ANALOGTV_BLACK_LEVEL, 0.0, 0.0, st->field_ntsc);
+ analogtv_lcp_to_ntsc(100.0, 0.0, 0.0, st->ball_ntsc);
+ analogtv_lcp_to_ntsc(100.0, 0.0, 0.0, st->paddle_ntsc);
+ analogtv_lcp_to_ntsc(100.0, 0.0, 0.0, st->score_ntsc);
+ analogtv_lcp_to_ntsc(100.0, 0.0, 0.0, st->net_ntsc);
- analogtv_draw_solid(inp,
+ analogtv_draw_solid(st->inp,
ANALOGTV_VIS_START, ANALOGTV_VIS_END,
ANALOGTV_TOP, ANALOGTV_BOT,
- field_ntsc);
+ st->field_ntsc);
+
+ XGetWindowAttributes(dpy, window, &xgwa);
+ do_shape(st, &xgwa);
+
+ return st;
}
static void
-p_logic(Paddle *p)
+p_logic(struct state *st, Paddle *p)
{
- int targ;
- if (bx > 0) {
- targ = ball.y + by * (r_paddle.x-ball.x) / bx;
- }
- else if (bx < 0) {
- targ = ball.y - by * (ball.x - l_paddle.x - l_paddle.w) / bx;
+ if (p->player == PLAYER_AI)
+ {
+ if (!p->wait)
+ {
+ int targ;
+ if (st->bx > 0) {
+ targ = st->ball.y + st->by * (st->r_paddle.x-st->ball.x) / st->bx;
+ }
+ else if (st->bx < 0) {
+ targ = st->ball.y - st->by * (st->ball.x - st->l_paddle.x - st->l_paddle.w) / st->bx;
+ }
+ else {
+ targ = st->ball.y;
+ }
+ if (targ > PONG_H) targ=PONG_H;
+ if (targ < 0) targ=0;
+
+ if (targ < p->y && !p->lock)
+ {
+ p->y -= st->paddle_rate;
+ }
+ else if (targ > (p->y + p->h) && !p->lock)
+ {
+ p->y += st->paddle_rate;
+ }
+ else
+ {
+ int move=targ - (p->y + p->h/2);
+ if (move>st->paddle_rate) move=st->paddle_rate;
+ if (move<-st->paddle_rate) move=-st->paddle_rate;
+ p->y += move;
+ p->lock = 1;
+ }
+ }
}
- else {
- targ = ball.y;
+# ifndef HAVE_JWXYZ
+ else if (p->player == PLAYER_MOUSE)
+ {
+ /* Clipping happens elsewhere. */
+ /* As the screen resolution increases, the mouse moves faster in terms of
+ pixels, so divide by DPI. */
+ p->y += (int)(st->mouse_y - (st->h / 2)) * 4 * (int)st->screen_h_mm / (3 * (int)st->screen_h);
+ if (st->is_focused)
+ XWarpPointer (st->dpy, None, st->window, 0, 0, 0, 0, st->w / 2, st->h / 2);
}
- if (targ > PONG_H) targ=PONG_H;
- if (targ < 0) targ=0;
-
- if (targ < p->y && !p->lock)
+# endif
+ else if (p->player == PLAYER_TABLET)
{
- p->y -= paddle_rate;
+ p->y = st->mouse_y * (PONG_H - PONG_TMARG) / st->h + PONG_TMARG - p->h / 2;
}
- else if (targ > (p->y + p->h) && !p->lock)
+ else if (p->player == PLAYER_KEYBOARD)
{
- p->y += paddle_rate;
+ if (st->key_up)
+ p->y -= 8;
+ if (st->key_down)
+ p->y += 8;
}
- else
+ else if (p->player == PLAYER_KEYBOARD_LEFT)
{
- int move=targ - (p->y + p->h/2);
- if (move>paddle_rate) move=paddle_rate;
- if (move<-paddle_rate) move=-paddle_rate;
- p->y += move;
- p->lock = 1;
+ if (st->key_w)
+ p->y -= 8;
+ if (st->key_s)
+ p->y += 8;
}
+
+ if ((st->dragging == 1 && p == &st->l_paddle) ||
+ (st->dragging == 2 && p == &st->r_paddle))
+ {
+ /* Not getting MotionNotify. */
+ Window root1, child1;
+ int mouse_x, mouse_y, root_x, root_y;
+ unsigned int mask;
+ if (XQueryPointer (st->dpy, st->window, &root1, &child1,
+ &root_x, &root_y, &mouse_x, &mouse_y, &mask))
+ st->mouse_y = mouse_y;
+
+ if (st->mouse_y < 0) st->mouse_y = 0;
+ p->y = st->mouse_y * (PONG_H - PONG_TMARG) / st->h + PONG_TMARG - p->h / 2;
+ }
}
static void
}
*/
static void
-paint_paddle(analogtv_input *inp, Paddle *p)
+paint_paddle(struct state *st, Paddle *p)
{
- analogtv_draw_solid(inp,
+ analogtv_draw_solid(st->inp,
ANALOGTV_VIS_START + p->x, ANALOGTV_VIS_START + p->x + p->w,
ANALOGTV_TOP, ANALOGTV_BOT,
- field_ntsc);
+ st->field_ntsc);
- analogtv_draw_solid(inp,
+ analogtv_draw_solid(st->inp,
ANALOGTV_VIS_START + p->x, ANALOGTV_VIS_START + p->x + p->w,
ANALOGTV_TOP + p->y, ANALOGTV_TOP + p->y + p->h,
- paddle_ntsc);
+ st->paddle_ntsc);
}
/*
- XClearArea(dpy,window, old_ballx, old_bally, ball.d, ball.d, 0);
- XFillRectangle (dpy, window, gc, ball.x, ball.y, ball.d, ball.d);
- XFillRectangle (dpy, window, gc, xgwa.width / 2, 0, ball.d, xgwa.height);
+ XClearArea(dpy,window, old_ballx, old_bally, st->ball.d, st->ball.d, 0);
+ XFillRectangle (dpy, window, gc, st->ball.x, st->ball.y, st->ball.d, st->ball.d);
+ XFillRectangle (dpy, window, gc, xgwa.width / 2, 0, st->ball.d, xgwa.height);
*/
static void
-erase_ball(analogtv_input *inp)
+erase_ball(struct state *st)
{
- analogtv_draw_solid(inp,
- ANALOGTV_VIS_START + ball.x, ANALOGTV_VIS_START + ball.x + ball.w,
- ANALOGTV_TOP + ball.y, ANALOGTV_TOP + ball.y + ball.h,
- field_ntsc);
+ analogtv_draw_solid(st->inp,
+ ANALOGTV_VIS_START + st->ball.x, ANALOGTV_VIS_START + st->ball.x + st->ball.w,
+ ANALOGTV_TOP + st->ball.y, ANALOGTV_TOP + st->ball.y + st->ball.h,
+ st->field_ntsc);
}
static void
-paint_ball(analogtv_input *inp)
+paint_ball(struct state *st)
{
- analogtv_draw_solid(inp,
- ANALOGTV_VIS_START + ball.x, ANALOGTV_VIS_START + ball.x + ball.w,
- ANALOGTV_TOP + ball.y, ANALOGTV_TOP + ball.y + ball.h,
- ball_ntsc);
+ analogtv_draw_solid(st->inp,
+ ANALOGTV_VIS_START + st->ball.x, ANALOGTV_VIS_START + st->ball.x + st->ball.w,
+ ANALOGTV_TOP + st->ball.y, ANALOGTV_TOP + st->ball.y + st->ball.h,
+ st->ball_ntsc);
}
static void
-paint_score(analogtv_input *inp)
+paint_score(struct state *st)
{
char buf[256];
- analogtv_draw_solid(inp,
+ char* fmt = (st->clock ? "%02d" : "%d");
+
+ analogtv_draw_solid(st->inp,
ANALOGTV_VIS_START, ANALOGTV_VIS_END,
- ANALOGTV_TOP, ANALOGTV_TOP + 10+ score_font.char_h * score_font.y_mult,
- field_ntsc);
+ ANALOGTV_TOP, ANALOGTV_TOP + 10+ st->score_font.char_h * st->score_font.y_mult,
+ st->field_ntsc);
+
- sprintf(buf, "%d",r_paddle.score%256);
- analogtv_draw_string(inp, &score_font, buf,
+ sprintf(buf, fmt ,st->r_paddle.score%256);
+ analogtv_draw_string(st->inp, &st->score_font, buf,
ANALOGTV_VIS_START + 130, ANALOGTV_TOP + 8,
- score_ntsc);
+ st->score_ntsc);
- sprintf(buf, "%d",l_paddle.score%256);
- analogtv_draw_string(inp, &score_font, buf,
+ sprintf(buf, fmt, st->l_paddle.score%256);
+ analogtv_draw_string(st->inp, &st->score_font, buf,
ANALOGTV_VIS_END - 200, ANALOGTV_TOP + 8,
- score_ntsc);
+ st->score_ntsc);
}
static void
-paint_net(analogtv_input *inp)
+paint_net(struct state *st)
{
int x,y;
x=(ANALOGTV_VIS_START + ANALOGTV_VIS_END)/2;
for (y=ANALOGTV_TOP; y<ANALOGTV_BOT; y+=6) {
- analogtv_draw_solid(inp, x-2, x+2, y, y+3,
- net_ntsc);
- analogtv_draw_solid(inp, x-2, x+2, y+3, y+6,
- field_ntsc);
+ analogtv_draw_solid(st->inp, x-2, x+2, y, y+3,
+ st->net_ntsc);
+ analogtv_draw_solid(st->inp, x-2, x+2, y+3, y+6,
+ st->field_ntsc);
}
}
-static void
-play_pong (void)
+static double
+double_time (void)
{
- erase_ball(inp);
+ struct timeval now;
+# ifdef GETTIMEOFDAY_TWO_ARGS
+ struct timezone tzp;
+ gettimeofday(&now, &tzp);
+# else
+ gettimeofday(&now);
+# endif
- ball.x += bx;
- ball.y += by;
+ return (now.tv_sec + ((double) now.tv_usec * 0.000001));
+}
- if ((random()%40)==0) {
- if (bx>0) bx++; else bx--;
- }
+static unsigned long
+pong_draw (Display *dpy, Window window, void *closure)
+{
+ struct state *st = (struct state *) closure;
+ const analogtv_reception *reception = &st->reception;
+ double then = double_time(), now, timedelta;
- if (!r_paddle.wait)
+ if (st->clock)
{
- p_logic(&r_paddle);
+ time_t now = time(0);
+ struct tm* tm_now = localtime(&now);
+
+ if (st->r_paddle.score != tm_now->tm_hour)
+ {
+ /* l paddle must score */
+ st->r_paddle.wait = 1;
+ }
+ else if (st->l_paddle.score != tm_now->tm_min)
+ {
+ /* r paddle must score */
+ st->l_paddle.wait = 1;
+ }
}
- if (!l_paddle.wait)
+ erase_ball(st);
+
+ st->ball.x += st->bx;
+ st->ball.y += st->by;
+
+ if (!st->clock)
{
- p_logic(&l_paddle);
+ /* in non-clock mode, occasionally increase ball speed */
+ if ((random()%40)==0) {
+ if (st->bx>0) st->bx++; else st->bx--;
+ }
}
- p_hit_top_bottom(&r_paddle);
- p_hit_top_bottom(&l_paddle);
+ p_logic(st, &st->r_paddle);
+ p_logic(st, &st->l_paddle);
+
+ p_hit_top_bottom(&st->r_paddle);
+ p_hit_top_bottom(&st->l_paddle);
- hit_top_bottom();
- hit_paddle();
+ hit_top_bottom(st);
+ hit_paddle(st);
#ifdef OUTPUT_POS
- printf("(%d,%d,%d,%d)\n",ball.x,ball.y,ball.w,ball.h);
+ printf("(%d,%d,%d,%d)\n",st->ball.x,st->ball.y,st->ball.w,st->ball.h);
#endif
- paint_score(inp);
+ paint_score(st);
- paint_net(inp);
+ paint_net(st);
if (1) {
- paint_paddle(inp, &r_paddle);
- paint_paddle(inp, &l_paddle);
+ paint_paddle(st, &st->r_paddle);
+ paint_paddle(st, &st->l_paddle);
}
- if (1) paint_ball(inp);
+ if (1) paint_ball(st);
- analogtv_handle_events(tv);
+ analogtv_reception_update(&st->reception);
+ analogtv_draw(st->tv, st->noise, &reception, 1);
- analogtv_init_signal(tv, 0.04);
- analogtv_reception_update(&reception);
- analogtv_add_signal(tv, &reception);
- analogtv_draw(tv);
+ now = double_time();
+ timedelta = (1 / 29.97) - (now - then);
+ return timedelta > 0 ? timedelta * 1000000 : 0;
}
\f
-char *progclass = "pong";
-char *defaults [] = {
- "*delay: 10000",
+static const char *pong_defaults [] = {
+ ".background: black",
+ ".foreground: white",
"*speed: 6",
+ "*noise: 0.04",
+ "*clock: false",
+ "*p1: ai",
+ "*p2: ai",
ANALOGTV_DEFAULTS
- "*TVContrast: 150",
0
};
-XrmOptionDescRec options [] = {
- { "-delay", ".delay", XrmoptionSepArg, 0 },
- { "-percent", ".percent", XrmoptionSepArg, 0 },
+static XrmOptionDescRec pong_options [] = {
{ "-speed", ".speed", XrmoptionSepArg, 0 },
+ { "-noise", ".noise", XrmoptionSepArg, 0 },
+ { "-clock", ".clock", XrmoptionNoArg, "true" },
+ { "-p1", ".p1", XrmoptionSepArg, 0 },
+ { "-p2", ".p2", XrmoptionSepArg, 0 },
ANALOGTV_OPTIONS
{ 0, 0, 0, 0 }
};
-void
-screenhack (Display *dpy, Window window)
+static void
+pong_reshape (Display *dpy, Window window, void *closure,
+ unsigned int w, unsigned int h)
+{
+ struct state *st = (struct state *) closure;
+ XWindowAttributes xgwa;
+ analogtv_reconfigure (st->tv);
+
+ XGetWindowAttributes(dpy, window, &xgwa); /* AnalogTV does this too. */
+ xgwa.width = w;
+ xgwa.height = h;
+ do_shape(st, &xgwa);
+}
+
+static Bool
+pong_event (Display *dpy, Window window, void *closure, XEvent *event)
{
- init_pong (dpy, window);
- while (1)
+ struct state *st = (struct state *) closure;
+ switch (event->type)
+ {
+ case MotionNotify:
+ st->mouse_y = event->xmotion.y;
+ break;
+# ifndef HAVE_JWXYZ
+ case FocusIn:
+ if (needs_grab(st))
+ {
+ grab_pointer(st);
+ }
+ break;
+ case FocusOut:
+ if (needs_grab(st))
+ {
+ XUngrabPointer (dpy, CurrentTime);
+ st->is_focused = False;
+ }
+ break;
+# endif /* !HAVE_JWXYZ */
+ case KeyPress:
+ case KeyRelease:
{
- play_pong ();
+ char c;
+ KeySym key;
+ XLookupString(&event->xkey, &c, 1, &key, 0);
+ Bool is_pressed = event->type == KeyPress;
+ switch(key)
+ {
+ case XK_Up:
+ if (st->l_paddle.player == PLAYER_KEYBOARD ||
+ st->r_paddle.player == PLAYER_KEYBOARD)
+ {
+ st->key_up = is_pressed;
+ return True;
+ }
+ break;
+ case XK_Down:
+ if (st->l_paddle.player == PLAYER_KEYBOARD ||
+ st->r_paddle.player == PLAYER_KEYBOARD)
+ {
+ st->key_down = is_pressed;
+ return True;
+ }
+ break;
+ case 'w':
+ if (st->l_paddle.player == PLAYER_KEYBOARD_LEFT ||
+ st->r_paddle.player == PLAYER_KEYBOARD_LEFT)
+ {
+ st->key_w = is_pressed;
+ return True;
+ }
+ break;
+ case 's':
+ if (st->l_paddle.player == PLAYER_KEYBOARD_LEFT ||
+ st->r_paddle.player == PLAYER_KEYBOARD_LEFT)
+ {
+ st->key_s = is_pressed;
+ return True;
+ }
+ break;
+ }
}
+
+ /* Allow the user to pick up and drag either paddle with the mouse,
+ even when not in a mouse-paddle mode. */
+
+ case ButtonPress:
+ if (st->dragging != 0)
+ return False;
+ else if (event->xbutton.x < st->w * 0.2)
+ {
+ if (st->l_paddle.player != PLAYER_MOUSE)
+ st->dragging = 1;
+ return True;
+ }
+ else if (event->xbutton.x > st->w * 0.8)
+ {
+ if (st->r_paddle.player != PLAYER_MOUSE)
+ st->dragging = 2;
+ return True;
+ }
+ break;
+ case ButtonRelease:
+ if (st->dragging != 0)
+ {
+ st->dragging = 0;
+ return True;
+ }
+ break;
+ }
+ return False;
+}
+
+static void
+pong_free (Display *dpy, Window window, void *closure)
+{
+ struct state *st = (struct state *) closure;
+ analogtv_release(st->tv);
+ free (st);
}
+XSCREENSAVER_MODULE ("Pong", pong)
projects / xscreensaver / blobdiff